Princess Maria Teresa is a member of the Spanish royal family, born on July 28, 1952. She is the daughter of Infante Juan, Count of Barcelona and Princess Maria Mercedes of Bourbon-Two Sicilies. Maria Teresa is known for her work in social causes, particularly in education and health. She is the sister of King Juan Carlos I of Spain and has played a role in various charitable organizations. Maria Teresa has also been involved in promoting cultural heritage and has a keen interest in history, reflecting her family's royal legacy.